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- Title
Wireless Hazard Badges to Detect Nerve-Agent Simulants.
- Authors
Zhu, Rong; Azzarelli, Joseph M.; Swager, Timothy M.
- Abstract
Human exposure to hazardous chemicals can have adverse short- and long-term health effects. In this Communication, we have developed a single-use wearable hazard badge that dosimetrically detects diethylchlorophosphate (DCP), a model organophosphorous cholinesterase inhibitor simulant. Improved chemically actuated resonant devices (CARDs) are fabricated in a single step and unambiguously relate changes in chemiresistance to a wireless readout. To provide selective and readily manufacturable sensor elements for this platform, we developed an ionic-liquid-mediated single walled carbon nanotube based chemidosimetric scheme with DCP limits of detection of 28 ppb. As a practical demonstration, an 8 h workday time weighted average equivalent exposure of 10 ppb DCP effects an irreversible change in smartphone readout.
- Subjects
BADGES; HAZARDOUS substances; SMARTPHONES; CHEMICAL inhibitors; SINGLE walled carbon nanotubes; CHOLINESTERASES
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 33, p9814
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201604431